Joseph, Abiathar Robinson's Possible Father from Royalton, VT?

As I mentioned in my notes in my Family Tree program, Abiathar's father could have been the Joseph Robinson I found on the census of 1850 in Royalton, Vermont who lived next door to the Rixes. Abiathar was not on the census, and at age 22 could have left town already seeking his fortune. This would tie in the connection of his first son being Rix Robinson.

Robinson Family of Royalton, Vermont, and Ipswich, Massachusetts

1. Amos Robinson b: Abt 1760 d: Abt 1840 m: Levina b: d: _________b:1762, d: 9 Dec. 1 m:Betsey838 Royalton, Vermont, buried in Broad Brook Cemetery. Purchased land in 1799 2. Amos Robinson b: 28 Dec. 1797 Royalton , Vermont d: m: Betsey Davis b: 1795 d: 15 Sept. 1824 Brownell house, Broad Brook. father: Asehel Davis mother: Nancy Smith m: Lois Safford b: 4 Dec. 1800 Royalton, Vt. d: Neenah, Wisconsin. father: Joseph Safford mother: Desire Culver 3. Nancy Robinson b: 1824 m: George W. Fay 3. Betsey Robinson b: 1824 m. George Clark 3. Dwight G. Robinson b: 1832 d: 18 Feb. 1853.
A. Mary Ann Robinson m. N. Thacher B. Martha Robinson C. Cyrus Robinson d: prison in Civil War D. Calvin Robinson E. Alfred Robinson F. William Robinson d: Royalton G. Charles Robinson H. Martha Robinson lived in Rolney, Iowa m. Englishman (became a Mormom) They separated. m. American m. Irishman m. Dutchman
2. Hiram Robinson b: 12 Aug 1799 m. Almira Morgan (4 March 1822) 2. Cephas Robinson b: 1801 d: 14 March 1803 2. Joel Robinson b: 1803 d: 31 March 1804 2. George Robinson b: 1804 d: 3 June 1822 2. Allen Joseph Bullard Robinson b: 27 Dec 1805 Royalton , Vermont d: 12 July 1881, Royalton, Vermont m. Lucy A. Sargent b: 22 Jan. 1813 Pomfret, d: 23 Sept. 1878 Royalton, Vermont. father: Edward Sargent 3. Amos Robinson b: 2 Sept 1831 d: 1865 Mississippi in Civil War 3. Emily P. Robinson b: 23 Jan 1834 d: 7 May 1895 Manchester, N.H. (tailoress, botanist) 3. George Robinson b: 19 Dec 1835 d: 10 May1863 Wolf Run Shoals, Virginia in Civil War m. Vola 4. Nellie Robinson m. Almon Morse 5. George Morse b: 1863 3. Joseph Allen Robinson b: 20 April 1845 Royalton, Vermont m. Lizzie May (13 Nov 1871) b: 1847 Hartland d: 2 Sept 1899 Hartland father: Paschal Sherwin 4 Mabel S. Robinson b: 13 May 1875 Royalton, Vermont m. Julian Burke (19 May 1897) 5. Merton Burke b: 11 May 1898 5. Raymond Burke b: 26 Aug 1899 5 . Everett Burke b: 19 May 1902 5. Milton Burke b: 19 May 1905 5. Percia Burke b: 26 Aug 1909
2. Cyrus D. Robinson b: 4 Nov. 1808 d: 24 Feb 1864 2. Maria Robinson b: 23 March 1809 d: 29 April 1817. 2. Hartwell Robinson b: 8 June 1815.
1. Timothy Robinson b: 1784 (left Stockbridge and came to Royalton abt 1832) d: 12 April 1868 Royalton, Vermont m. Olive (20 Dec. 1819) father: David Bowen b: Nov 1793-94 d: 19 May 1881 Royalton , Vermont (Howe Cem) mother: Betsey d: Royalton, Vermont (Howe Cem) 2. John Robinson b: March 1821 d: 15 Sept 1822 (Howe Cemetery) 2. Elizabeth Robinson b: 7 Nov 1823 d: 28 Feb 1891 Boston m. Ambrose W. Spaulding (2 Jan 1851) 3. Minnie Spaulding 3. Carrie Spaulding 2. John Robinson b: 18 Aug 1825 d: 11 June 1873 Sharon, m. Harriett Clark b: 28 Nov 1826 Walpole, N. H. d: 19 Sept 1872 Royalton, Vermont father: Loren W. Clark mother: Tirza 3. 2. Richard Rush Robinson b: 8 May 1831 d: 2 April 1890 Randolph m. Susan B. Sanford (2 Dec. 1858) b: 1832 2. Josephine A. Robinson b: 17 Oct 1833 Royalton, Vermont m. Julius Lane (29 Oct 1863) b: Potsdam, N.Y. d: May 1890 Crawford, Nebraska.

From the Samuel Chapin Family found on RootsWeb.com I found Abiathar Robinson b: Aug. 1750 in Gransville, Mass. Wife was Buelah Parsons. This was also on Deanne Driscoll's tree at the same place. The latter included a Jonathan Smith Robinson d: in Of Springfield, Mass.